Home / 11,328.89-15,632.75-6,790.37

Finding the Fourth Proportional to 11,328.89, 15,632.75 and 6,790.37

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Solution

The fourth proportional to 11,328.89, 15,632.75 and 6,790.37 is: 9,370.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.89 : 15,632.75 = 6,790.37 : x
  2. Step 2: Convert to fraction form
    11,328.89/15,632.75 = 6,790.37/x
  3. Step 3: Cross multiply
    11,328.89x = 15,632.75 × 6,790.37
  4. Step 4: Simplify right side
    11,328.89x = 106,152,161.75
  5. Step 5: Solve for x
    x = 106,152,161.75/11,328.89
  6. Step 6: Final answer
    x = 9,370.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.